pawanbastakoti681
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  • 04-04-2020
  • Mathematics
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Prove
that:
cos^3A Cos3A + sin^3A.sin 3A=cos^3 2A​

Provethatcos3A Cos3A sin3Asin 3Acos3 2A class=

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Аноним Аноним
  • 04-04-2020

Answer:

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